cellular respiration Flashcards
where does glycolysis occur
cytoplasm
does glycolysis require oxygen
no
how many atp is used during glycolysis
2
product of glycolysis
2 pyruvate, 2 nadh, 2 atp, 2 water
krebs cycle is also known as
citric acid cycle/tricarboxylic acid cycle
what needs to be done before krebs cycle
convert pyruvate to acetrl Coenzyme A through pyruvate oxidation
product of pyruvate oxidation
2 nadh, 2 co2, 2 acetyl CoA
to what does acetyl CoA bind to at the start of krebs cycle
oxaloacetate
where does krebs cycle occur
mitochondrial matrix
products of krebs cycle
2 ATP, 6 NADH, 2 FADH2, 4 co2
use of energy in a H+ gradient to drive cellular work
chemiosmosis
where does oxidative phosphorylation occur
cristae of mitochondria
product of chemiosmosis
26 - 28 atp, 6 water
final electron acceptor of etc
oxygen
oxidation vs reduction
oxidation: loses e-,
reduction: gains e-
what is oxidized and reduced in cellular respiration
oxidized: glucose to carbon dioxide
reduced: oxygen to water
anabolic vs catabolic pathway
catabolic: release energy by breaking complex molecules into simpler compounds
anabolic: consume energy to build complex molecules from simpler molecules
cellular respiration is an example of __ pathway
catabolic
general equation of cellular respiration
C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy
uses ETC with final electron acceptor other than oxygen ex: sulfate
anaerobic respiration
uses substrate-level phosphorylation instead of etc to produce atp, only involves glycolysis
fermentation
obligate vs facultative anaerobes
obligate: cannot survive in presence of oxygen
facultative: can do aerobic or anaerobic
alcohol fermentation
pyruvate -> ethanol through release of co2
example of alcohol fermentation
uses yeast and used for brewing, winemaking, baking
